Stem-winding mechanism for watches



(No Model.)

W. BELL.

STEM WINDING MECHANISM FOR WATCHES.

Patented Jun 22 Wol'neu ea.

N. PLrERs MW wanin n. c

UNITED STAT S PATENT OFFI E.

IVEBSTER BELL, OF BOSTON, MASSACHUSETTS.

STEM-WINDING MECHANISM FOR WATCHES.

SIECIFIGATION forming part of Letters Patent No. 344,026, dated June 22,1886.

Application filed March 29, 1886.

To all whom, it may concern.-

Be it known that I, \VEBs'rER BELL. of Bos ton, in the county ofSuffolk, State of Massachusetts, have invented a certain new and usefulImprovement in \Vatches, of which the following is a descriptionsufficiently full, clear, and exact to enable any person skilled in theart or science to which'said invention appertains to make and use thesame, reference being had to the accompanying drawings, forming part ofthis specification, in which- Figure 1 is an enlarged plan view showingthe movement of a hunting-case watch with the case and dial removed;Fig. 2, a like view of the movement of my improved watch, and Fig. 3 areduced view of the dial detached.

Like letters of reference indicate corresponding parts in the differentfigures of the drawings.

My invention relates more especially to that class of stem-windin gwatches which are known to the trade as the Howard Steel-Barrel WVatchfand it consists in a novel construc tion and arrangement of the parts,as herein after more fully set forth and claimed, by means of which themovement of an ordinary hunting-case watch of this character is adaptedfor use with an open dial.

In huntingcase watches of the character described the winding'stem isplaced opposite the figures III on the dial, in order that when the caseis opened in the usual manner to ascertain the time the figures XII willbe uppermost; but in open-face watches it is desirable, for likereasons, that the stem should stand opposite the figures XII, or be sodisposed that when the watch is drawn from the pocket and held up toview by the ring or stem said last named figures will appear uppermost.

To convert the hunter movement shown in Fig. 1 into the open-facemovement shown in Fig. 2, or to adapt the movement of a steelbarrelHoward stem -winding huntingcase watch to be used with an open dial, andhave the stem disposed in proper position, is the object of my presentinvention, the nature of which will be readily understood by allconversant with such matters from the following explanation.

In the drawings, A represents the barrel; B, the stop wheel; O, thebarrel-arbor; D, the

Serial No. 196,9 l9. (No model.)

barrel bridge. or plate; E, the click or retaining-pawl, which engagesteeth on the barrelwheel; F, the clielespring; G, the winding bridge orplate; II, the stem; I, the bevelwheel; J, the windingwheel No.1; K, the

set-wheel No. 1; L, the set-wheel No. 2; M, the hour dial-wheel, and Nthe minute dialwheel, these parts in Fig. 1 being all of the ordinaryform and construction found in hunting-case watches of this character.

In order to better understand the nature of my improvement, attention iscalled to some of the principal changes necessary to convert themovement shown in Fig. 1 into that shown in Fig. 2.

In Fig. 1 the barrel A and barrel-plate D are disposed at the left ofthe stem and nearly opposite the position of the figures XII on thedial, and in Fig. 2 at the right of the stem and nearly opposite theposition of the figures III on the dial. In Fig. 1 the click E andclickspring F are disposed at the left of the barrel, nearly oppositethe position of the figure X on the dial, and in Fig. 2 below thebarrel, nearly opposite the position of the figures IIII on the dial. InFig. 1 the winding-plate G is provided with a projection, 03, at theleft of the stem II, nearly opposite the position of the figures II onthe dial, and in Fig. 2 this projection is at the right of the stem,nearly opposite the position of figure I on the dial. In Fig. 1 thewinding-wheel J is disposed above or at the left of the stem, and inFig. 2 at the right of the stem. In Fig. 1 the bevel-wheel I andset-wheel L stand opposite the figures III on the dial, and in Fig. 2opposite the position of the figures XII on the dial. In Fig. 1 theset-wheel K is disposed below or to the right of the stem and nearlyopposite the position of the figures IIII on the dial, and in Fig. 2 tothe left of the stern and nearly opposite the position of the figure Xon the dial; and in Fig. 1 the dial-wheel N stands below the dial-wheelM and nearly opposite the po sition of the figures VI on the dial, whilein Fig. 2 the dial-wheel N is disposed at the left of the wheel M andnearly opposite the position of the figures IX on the dial, thesechanges in the construction and arrangement of the parts being necessaryin order to transfer the stem H from its position at the right of theICC hunter movement,- as shown in Fig. 1, to the Having thus explainedmy invention, what top ofthe open-face movement shown in Fig. 2. I Iclaim is- It will be understood that the watch is to be In a watch, thestem H, plates D G, barrel provided with a case and crystal,and is alsoA, stop-wheel B, wheels M N K L I J, click 15 5 provided with suchplates, wheels, and work: E, spring F, and dial 0, constructed, conningpartsin addition to those shown as to renbined, and arrangedsubstantially as and for der it operative; but as said plates, wheels, Ithe purpose shown and described.

WEBSTER BELL.

and working parts are constructed and arranged substantially in the samemanner as in Witnesses: 1o ordinary watches of this character, it is not0. M. SHAW,

deemed essential to describe them more fully. E. L. SAWYER.

